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Minimum water pressure 15 PSI / Maximum water pressure 150 PSI
Dimensions: (H: 6 1/2") (W: 12 1/4") (D: 3")
Troubleshooting
NO NEON LIGHT, NO HOT WATER
- Be certain power and breaker at panel box are on.
- Water supply to unit must be connected to proper fitting.
Fitting closest to drain plug.
- The high temperature thermal cut-out has been triggered. Turn
off power to unit , remove front cover and reset thermal
cut-out. Location
of thermal cut-out Thermal cut-out button should push
in and click, if it does not but rather feels stiff and wobbly
then it is not the problem.
- If the power and reset are all right then the flow switch in
the heater needs to be inspected. See diagram below. The unit
may be mounted on wall in a different orientation then this
diagram but in this diagram the plastic (white or black) plunger
with screw on the stem needs to move laterally to the left with
sufficient water flow. Best to test by leaving faucet open and
controlling water flow to heater with an inlet or outlet service
valve directly before or after the heater, this way the flow
switch can be observed. If water continues to flow at sink
while service valve is turned off then this plumbing error will
prevent the flow switch from pressurizing and needs to be
corrected. If plumbing is all right but the flow switch
doesn't move then either the flow is insufficient or the flow
switch is stuck from use or water quality. Improve flow rate by
cleaning filter screen and aerator screen at sink, also remove
aerator screen/restrictor at sink to improve flow as a test.
Location of filter screen, marked filter plug
WATER IS TOO HOT
- Inlet water is preheated. This unit does not recognize
preheated water and is designed to be plumbed with cold water.
- The Powerstream will boost inlet water temperature as water
flows through it. To lower outlet temperature first position the
selector screw to the LO setting. See diagram above with LO and
HI markings. Turn off power, remove front cover, loosen selector
screw and then slide all the way to LO setting and retighten.
Selector screw has to be positioned to either end of slot, do
not position it midway. If temperatures are now too cool then it
is best to put screw back to HI setting and follow step 2.
- The rate of water flow will effect the outlet temperature, the
greater it is the less time the heater is capable of heating as
it passes through it. Increase flow rate by cleaning filter
screen, aerator screen at sink and check to be sure inlet and
outlet service valves are fully open. Removing restrictors at
faucet will also increase flow rate. Location
of filter screen, marked filter plug
WATER IS NOT HOT ENOUGH, NEON LIGHT IS ON
- Check selector screw's position. Turn off power and remove
front cover to check. If on LO then loosen selector screw and
slide all the way to the HI setting, retighten selector screw.
- Lower the flow rate at the sink to increase water temperature
or adjust the outlet service valve until the water come out of
the tap at the required temperature. Check possible temperature
rise per model and flow rate at Specification table
above.
- Models RP1 / RP2 / RP7 / RP9 have two venturis which are
responsible for activating the heater when water is turned on.
These listed units come with a 3/4 gpm minimum flow rate venturi
(activator), which sits at the top of spring shown below. An
alternate 1/2 gpm is also provided in these listed heaters,
which sits at the bottom of spring shown below, and can be
swapped to keep unit activated with a lower flow rate and thus
hotter water. The Model RP3 only has a 1/2 gpm venturi and the
Model RP12T only has a 1 gpm venturi. Remove drain plug to
access, see diagram below.
WATER TEMPERATURE FLUCTUATES
- While running hot water observe the neon light on the front of
unit. The light should remain on during hot water use, if it
goes out then likely the water pressure is fluctuating, flow
rate is barely sufficient and causing the flow switch to cycle
on and off or the inlet water temperature is warm or hot and the
unit is cycling its low thermal cut-out to prevent the unit from
overheating. To improve flow rate, check to be sure inlet and
outlet service valves are not tightened too much, clean inlet filter screen and faucet aerator screen. Removing restrictors at
faucet will also increase flow rate.
Location of filter screen, marked filter plug
- If inlet water is warm because of climate or season then it is
recommended that the selector screw in heater be positioned to
the LO setting. Turn off power, remove front cover and loosen
selector screw. Then slide screw to LO setting all the way and
retighten. NOTE: this heater is designed to be plumbed with cold
water and is not designed to be used as a booster, do not
plumb unit with preheated water.
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